Zilog ZUSBOPTS - Manual (Page 419)

UM017105-0511
Zilog Developer Studio II – ZNEO™
User Manual
391
Appendix C. C Standard Library
As described in the Run-Time Library section on page 177, the ZNEO C-Compiler pro-
vides a collection of run-time libraries. The largest section of these libraries consists of an
implementation of much of the C Standard Library.
The ZNEO C-Compiler is a conforming freestanding 1989 ANSI C implementation with
some exceptions. In accordance with the definition of a freestanding implementation, the
compiler supports the required standard header files <
float.h >, < limits.h >,
< stdarg.h >, and < stddef.h >. It also supports additional standard header files and
Zilog-specific nonstandard header files. The latter are described in the Run-Time Library
section on page 177.
The standard header files and functions are, with minor exceptions, fully compliant with
the ANSI C Standard. The deviations from the ANSI Standard in these files are summa-
rized in
Library Files Not Required for Freestanding Implementation – see page 196. The
standard header files provided with the compiler are listed in Table 34 and described in
detail in the
Standard Header Files section on page 392. The following sections describe
the use and format of the standard portions of the run-time libraries:
•
Standard Header Files – see page 392
•
Standard Functions – see page 407
Table 34. Standard Headers
Header Description Page
<assert.h> Diagnostics 394
<ctype.h> Character-handling functions 394
<errno.h> Error numbers 393
<float.h> Floating-point limits 396
<limits.h> Integer limits 395
<math.h> Math functions 398
<setjmp.h> Nonlocal jump functions 401
<stdarg.h> Variable arguments functions 401
<stddef.h> Standard defines 393
<stdio.h> Standard input/output functions 402
<stdlib.h> General utilities functions 403
<string.h> String-handling functions 405